Jack bolster



May 2.9, 1923. v H. v. s ouDl-:Rs

JACK HOLSTER Fied Maron 1922 lll/Jill,

Lagyy Patented May 29, 192.3.

UNITED STATES PATENT. ori-fica'.

minnaar v. soUnEas, or win-armaron, CALIFORNIA, Assmann or 01m-mr To.Jassn u. raos'r, or Lone BEACH, camrcama.

,mex Botsuana;l

` appiieation'aied mich 9, 1922. serial no. 542,292.

To-aZZ whom t |may concern:

Be it known that I, HERBERT V. SoUDERs, a citizen of the United States,residing at. Wilmington, in the county of 5 and State of California,have invented new and useful Improvements in Jack Bolsters, of which thefollowing is a specification.

My invention relates to vehicle jacks, and a purpose of my invention isthe provision 1 of a bolster-adapted to be associated with a jack ofconventional form to occupy, when the jack is in active position, aninterposing position between one of the springs of a vehicle and thehead of a jack thus permitting of the direct application of the jack toa vehicle spring in effecting a lifting of a vehicle wheel and therebyeliminating the necessity 4of an operator crawling beneath a' vehicle toapply the j ackas is now the custom.

It is also a purpose of my invention to provide a jack bolster which ispivotally associated with the spindle of a jackso as to be extended whenin active position, and compactly folded with respect to the jack whenin inactive position, the jack bolster thus constituting an integralpart of a jack. Although I will describe only two forms of j ackholsters embodying my invention and point out the novel features thereof`in claims, it is to be understood that various changes andmodifications may be made herein without departing from the spirit andscope vof such claims. In the Iaccompanying drawings,

Figure 1 is a view showing a portion of a mot-or vehicle having appliedto thespring thereof a jack and one form of jack bolster embodying myinvention.

Fig. 2 is an enlarged fragmentary view showing in side elevation thevehicle spring, bolster and jack spindle.-

Fig. 3 is a top plan view of the bolster shown in the preceding views.

Figs. 4 and 5 are transverse sectional views taken on the lines 4-4 and5'5, respectively, of Fig. 3.

Fig.

6 is a fragmentary view Showing in side elevation the jack bolsterhingedly associated with a jack spindle and also embodying my invention.

Similar reference characters refer to similar parts in each of-theseveral views.

Referring specifically to the drawings, my invention, in 4its presentembodiment, com- Los Angeles prises a channel bar B formed `of a singlelength of metal and including a linear portion b and a curved portion blThe linear portion b is shown as tapered in width from its point ofconnection with the curved portion b', and its free end provided with ahead 16 arranged transversely of the p0rtiony and including an upwardlyextendin flange '17 at the ends -of which are forme upstandingprojections 18. As clearly shown in Fig. 5, the web of the portion b isdisposed lowermost with respect to the bar so that the edge flangesextend upwardly.

The portion b is curved upwardly from its point of connection with theportion b, and as clearly shown in Fig. 1, the web 19 thereof isdisposed reverselywith respect to the web of the portion b so as toprovidea recess 20 upon the under side. of the portion which is adaptedto receive the head 21 of any conventional form of jack. As the greatestpreure is exerted upon this curved portion b', it is preferablyreinforced by means of intersecting ribs 22 as clearly shown in Fig. 3,these ribs being formed integral with the web 19 as will be understood.The free end of the portion b is provided yvith an upstanding flange 23,and the opposite ends of this flange are formed with upstandingprojections 24.

In the applied position'of the bolster as shown in Figs. 1 and 2, theprojections 18l and 24 serve to maintain the bolster against lateraldisplacement with respect to the spring designated at S of the vehicle,and as particularly shown in Fig'. 2, the bolster contacts with thespring only at flanges 17 and 23.

In practice, any conventional form of jack such as the jack J shown inFig. 1 is associated with the bolster so that its head 21 is disposedwithin the recess 22, and with the bolster applied to the spring asshown, it will be clear that by actuating the jack the spindle 25thereof when moved upwardly will co- 100 operate with the bolster andspring in effecting anelevation of the vehicle wheel.

It is to be particularly noted that the' deposition of the recess 22 issuch that thejack J- can be applied to the bolster at a 105 point in therear of the vehicle wheel, thereby permitting of the actuation of the'ack from a point 1n the rear or at the side o the vehicle, thuseliminating the necessi of theoperator crawlingv beneath the ve 'cle to110 j operation.

apply the jack as is the present practice. The length of the bolster Bis such as to properly distribute the pressure exerted by the jack alongthe length of the spring thereby preventing distortion of the spring anda separation of its leaves during the lifting In the form of bolsterjust described, it is adapted to be applied to and removed from thespring independently of the jack, as it is my intention that thisbolster be adapted for use with any jack of conventional form.

However, in order that the bolster may constitute an actualpart of anyconventional form of jack so as to prevent loss thereof and tofacilitate the application and removal thereof to the spring, thebolster is hingedly connected to the spindle of a jack in the mannershown in Fig. 6. As here shown, the upper end of the spindle 25 isprovided With an ear 26 instead of the head 21, and this ear is adaptedto be inserted between a pair of spaced ears 27 formed on the bar Bthrough Which a pivot pin 28 is eX- tended.

By this construction it will lbe clear that the bolster can occupy anextended position in which it is disposed substantially at right anglesto the spindle for application to the spring, ora folded position inwhich it is disposed substantially parallel to the body of the jack sothat it may be easily stored Within the compartments provided tor thispurpose in a vehicle.

What I claim is:

1. lln combination, a vehicle including a spring, a jack adapted forarrangement beneath the spring and in the rear or advance of theadjacent Wheel, and a bolster interposed between the head of said jackand spring and formed with a jack head receiving portion adjacent to theouter end thereof whereby the operating lever of the jack is so disposedas to permit actuating thereof Without reaching beneath the vehicle.

2. A bolster of the character described v the mamies comprising achannel bar including a linear portion and a curved portion, the Webs ofsaid portions being reversely disposed to provide a recess at the innerside ot the bar and at a point intermediate of its ends.

3. A bolster of the character described comprising a channel barincluding a linear portion and a curved portion, the Webs of saidportions being reversely disposed to provide a recess at the under sideof the bar which is accessible from one end of the bar, transverse andupstanding flanges formed on the ends of the bar, and upstandingprojections formed on the ends of the flanges.

4. In combination, a jack includinga spindle and a bolster adapted foruse in connection With a jack and movably secured to the spindle tooccupy an extended position in which it is disposed substantially atright angles to the spindle, and a folded position in'which it isdisposed substantially in parallelism to the spindle.

5. A bolster adapted tor use in connection with a jack and comprising abar U-shaped in cross section for a portion of its length and ofinverted lJ-shape in cross sections for remainder of its length.

6. A bolster comprising a channel bar having upturned ends and the webthereof reversely disposed from a point between its' ends to provide onthe under side of the bar a recessportion adapted to receive the head ofa jack. 1

7. A bolster comprising a bar Ushaped in cross section for a portion ofits length and of inverted U-shape in cross sections for the remainderof its length, the first portion being of linear form and the remainingportion curved.

8. A bolster comprising a. bar having a recess in its under side whichis accessible from one end of the bar to permit the application of ajack thereto.

ln testimony whereof I name to this speciiication.

HERBERT V. SOUDERS.

have signed my

